Finding the Fourth Proportional to 698,487.80, 963,916.99 and 408,116.41
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Solution
The fourth proportional to 698,487.80, 963,916.99 and 408,116.41 is: 563,202.88
Step by Step Solution
- Step 1: Write the proportion equation
698,487.80 : 963,916.99 = 408,116.41 : x - Step 2: Convert to fraction form
698,487.80/963,916.99 = 408,116.41/x - Step 3: Cross multiply
698,487.80x = 963,916.99 × 408,116.41 - Step 4: Simplify right side
698,487.80x = 393,390,338,066.72 - Step 5: Solve for x
x = 393,390,338,066.72/698,487.80 - Step 6: Final answer
x = 563,202.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.